void SaveChunk(byte[] data, int xc, int yc)
{
// reuse chunk if it already exists
Vector3i coordinate = _loadedChunk + new Vector3i(xc, yc, 0);
FogOfWarChunk chunk = _chunks.Find(c => c.coordinate == coordinate);
if (chunk == null)
{
chunk = new FogOfWarChunk();
chunk.coordinate = coordinate;
chunk.fogData = new byte[_valuesPerChunk];
_chunks.Add(chunk);
}
else if (chunk.fogData == null || chunk.fogData.Length != _valuesPerChunk)
{
chunk.fogData = new byte[_valuesPerChunk];
}
int halfmapsize = _mapResolution / 2;
int xstart = halfmapsize * xc;
int ystart = halfmapsize * yc;
// copy values
for (int y = 0; y < halfmapsize; ++y)
{
System.Array.Copy(data, (ystart + y) * _mapResolution + xstart, chunk.fogData, y * halfmapsize, halfmapsize);
}
}
void LoadChunk(byte[] data, int xc, int yc)
{
// only load if the chunk exists
Vector3i coordinate = _loadedChunk + new Vector3i(xc, yc, 0);
FogOfWarChunk chunk = _chunks.Find(c => c.coordinate == coordinate);
if (chunk == null || chunk.fogData == null || chunk.fogData.Length != _valuesPerChunk)
{
return;
}
int halfmapsize = _mapResolution / 2;
int xstart = halfmapsize * xc;
int ystart = halfmapsize * yc;
// copy values
for (int y = 0; y < halfmapsize; ++y)
{
System.Array.Copy(chunk.fogData, y * halfmapsize, data, (ystart + y) * _mapResolution + xstart, halfmapsize);
}
}
